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PR/27087 CVS commit: src/sys/arch/alpha

The following reply was made to PR port-alpha/27087; it has been noted by GNATS.

From: "Jason R Thorpe" <>
Subject: PR/27087 CVS commit: src/sys/arch/alpha
Date: Wed, 14 Oct 2020 00:59:50 +0000

 Module Name:	src
 Committed By:	thorpej
 Date:		Wed Oct 14 00:59:50 UTC 2020
 Modified Files:
 	src/sys/arch/alpha/alpha: api_up1000.c dec_2000_300.c machdep.c
 	src/sys/arch/alpha/include: alpha.h cpuconf.h vmparam.h
 	src/sys/arch/alpha/jensenio: jensenio_dma.c jenseniovar.h
 	src/sys/arch/alpha/pci: irongate_dma.c irongatevar.h
 Log Message:
 Add a mechanism to allow a platform to optionally shelter some region
 of physical memory from random allocations from the default VM page
 free list.  Use this hook to shelter regions within 0-16MB of physical
 RAM on Jensen and Irongate systems; those platforms do not have SGMAP
 DMA, and so we need to shelter this range so that devices using ISA DMA
 (e.g. floppy controller) have an opportunity to allocate DMA-safe memory.
 PR port-alpha/27087
 To generate a diff of this commit:
 cvs rdiff -u -r1.30 -r1.31 src/sys/arch/alpha/alpha/api_up1000.c
 cvs rdiff -u -r1.19 -r1.20 src/sys/arch/alpha/alpha/dec_2000_300.c
 cvs rdiff -u -r1.367 -r1.368 src/sys/arch/alpha/alpha/machdep.c
 cvs rdiff -u -r1.43 -r1.44 src/sys/arch/alpha/include/alpha.h
 cvs rdiff -u -r1.16 -r1.17 src/sys/arch/alpha/include/cpuconf.h
 cvs rdiff -u -r1.39 -r1.40 src/sys/arch/alpha/include/vmparam.h
 cvs rdiff -u -r1.6 -r1.7 src/sys/arch/alpha/jensenio/jensenio_dma.c
 cvs rdiff -u -r1.5 -r1.6 src/sys/arch/alpha/jensenio/jenseniovar.h
 cvs rdiff -u -r1.7 -r1.8 src/sys/arch/alpha/pci/irongate_dma.c
 cvs rdiff -u -r1.6 -r1.7 src/sys/arch/alpha/pci/irongatevar.h
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

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